Gear hobbing machine is the most widely used type of gear processing machine tool, which can cut straight and helical cylindrical gears, as well as process worm gears, sprockets, etc. A gear processing machine tool for machining straight, helical, and herringbone cylindrical gears, as well as worm gears, using a hob according to the generative method. This machine tool can also process various special tooth shaped workpieces such as splines and sprockets when using specially designed hobs. The machining accuracy of ordinary gear hobbing machines is 7-6 levels (JB179-83), while high-precision gear hobbing machines are 4-3 levels. The maximum machining diameter is 15 meters.

Design is a key and initial step in casting, and for gear casting, it is also a key step. It is related to the quality and level of the cast gears. In the design stage, selecting appropriate casting gear materials, conducting advanced and reasonable structural design, and selecting efficient and reliable gears and bearings are essential steps.

In the process of gear processing, advanced blank forming technology, stable and precise heat treatment process, and appropriate surface hardening treatment program are all key factors in ultimately forming high-quality gears. For example, in grinding processing, there are several key links: by selecting grinding wheels with sharp edges and low surface stress, the grinding feed rate can be increased, the grinding time can be shortened, the grinding efficiency can be improved, and the interval between grinding wheel dressing can be extended to reduce costs; By using appropriate grinding and grinding wheel parameters, while ensuring the absence of grinding burn cracks and ensuring quality, use higher grinding parameters as much as possible to shorten grinding time, improve grinding efficiency, increase production, and ensure accuracy and reduce surface roughness; By using appropriate grinding oil, it can be ensured that under the premise of good lubrication and rust prevention, the surface stress of the grinding tooth surface can be reduced, burn cracks can be avoided, roughness can be reduced, the degree of clogging of the grinding wheel pores can be reduced, the sharpness of the grinding wheel can be ensured, the dressing of the grinding wheel can be reduced, the amount of grinding wheel used can be reduced, and the cost can be reduced.